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[Paul330d]

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

[Pazzuzzu]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

My biggest beef with the RE050A run flats is the shitty treadwear

[BMerDRMer]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

Paul ..... can you tell us here in the States a little more about the 330d power plant? I noticed the very high torque rating ...... ! What does BMW rate the 0-60 mph at (or I guess 0-62mph) ...... WHat are the fuel mileage ratings ...... just curious as we don't have the option here in the States.

[Paul330d]

Official 0-60mph times for the standard 330d are 6.5 secs for the manual , 6.6 for the Step'. Approx. 40 mpg.

Once my 330d has been broken in properly (+/-5000km), I will be getting it remapped to produce 261hp & 413ft/lb (see attached PDF from Upsolute)

[Hornet]

1. M Mobility System
http://www.e90post.com/forums/showth...light=mobility

2. Don't really know. It's hard to compare the original RFT summer Contis vs. the studded Nokian wintertyres(16") but I'd say there isn't much difference.

Style 161 wheels that we got for the summer have Bridgestone RE050IIA tyres fitted so after a couple of weeks, when the snow is gone, I can do more research.

[Carnage]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

1) Puncture repair kit.

2) There was a noticeable improvement when I replaced my run-flats with non RF winter tires of the same size. I won't use run-flats again.

[ase2dais]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

1. I carry a can of Fix-a-Flat, and also a spare full NRFT (1 winters tire and vice-versa during winters)

2. Yes! much more road feel, and enjoyable to drive. I can play more during my turns and twisties, unlike those stiff RFTs.

I recommend Pilot Sports AS or PS2s, but you would need performance winters tires too if you do dedicated season tires.

Good Luck

[ctgazer]

i dunno if your replacing it with the same size but i replaced my oem 16' rft with 20' maya's on nittos today and already the ride seems softer. remember to peel sticker off tire before putting on your car otherwise you'll get a fut fut fut sound for a while like mine

[ase2dais]

fut fut fut

[noflash]

Originally Posted by ase2dais

1. I carry a can of Fix-a-Flat...

Bad idea. If your car gets too hot -- kaboom. There are plenty of non-compressed kits out there.

.....

1. Slime Fix-a-flat kit $20.

2. Yes!

[wheeler]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

Just went from 18" run-flats to 19" Toyo T1R. Even though the new tires are lower profile, ride is still much improved. Best of all that damned tramlining is all but gone! Replacements are wider, so handling is improved as well--sticks like crazy in the curves. Also I look 20 years younger, 50 pounds lighter, and my arthritis is gone!

But seriously, the only reason to get run-flats is safety. They ride like crap, don't handle well, and are expensive, but they are definitely safer. Depends on your priorities.

I am carrying a compressor that runs off the cigarette lighter plug and a tire plugging kit. I'll use the plug to get to a tire shop, then get it patched from the inside.

[clutch09]

I was wondering the same things, great post!

[JIMD1709]

I got rid of the run-flats due to new wheel/tire set-up. They ride noticably better despite being 19" and ultra-low profile!!

I have this in the trunk

http://www.slime.com/smartspairs/index.php

[mikepinkerton]

Dunno, the run flats seem quiet to me and they handle fine. *shrug*

[Asterix]

Did somebody ever checked whether spacesaver steel wheel of E46 330 coupe 3.5 b 17 " ET 30 with tyre 125/80 17 (BMW #36116750007) could fit on the E 90 330?
Another option the E 60 steel wheel 4B 17" ET18 (in that case tyre should be changed 135/80 17" does not have the same diameter than 225/45/17)

[ashecnc]

Originally Posted by JIMD1709

I got rid of the run-flats due to new wheel/tire set-up. They ride noticably better despite being 19" and ultra-low profile!!

I have this in the trunk

http://www.slime.com/smartspairs/index.php

My 19s will be here Monday, do you think that stuff really works if you had a flat? So you don't have a jake or spare tire? Thanks for the tips

[ase2dais]

Originally Posted by noflash

Bad idea. If your car gets too hot -- kaboom. There are plenty of non-compressed kits out there.

.....

1. Slime Fix-a-flat kit $20.

2. Yes!

thks for the suggestion, I may have to check that out, Danke!

[BrunoT]

Originally Posted by Paul330d

Quite a few people here seem unhappy with their OEM RFTs, principally because of the firm ride they give, and some have gone so far as to swap them for none RFs. My questions to those concerned are:

1. which solution have you gone for in the event of a puncture? Full-size, or space-saver spare wheel, or puncture repair kit (foam spray can)?

2. is there a noticeable difference in ride comfort with the new tyres (assuming identical size)?

I purchased a bmw compact spare from an E46 that is strapped in the trunk. With just two of us that still leaves room for 2 adults and 2 dogs in the car on trips.

The car had much more grip (wider tires and wheels also) but since we went from 16" to 18" wheels the ride was not quite as smooth I'd say.

My main problem with getting more runflats was the huge cost and the high miles we put on the car at the time. But I also didn't like the idea of having a catastrophic damage to the tire and being stranded. I've had tires get torn sidewalls before by roadside debris.

[MINNOW]

I went through the whole crappy ride quality issue with runflats on my MINI.
Recently switched to Toyo T1R's and very happy with the improvement.
IMHO the ride quality of the MINI with runflats is simply unacceptable.
I am not looking forward to the runflats on the E90, may have to change them out shortly after delivery.
Maybe the issue of poor treadwear on the RE050's as some posters here complain about is not such a bad thing.

[difush]

Originally, I thought the RFT was a good idea since my wife is driving it and safety is a consideration, but after I've got the car, the ride and tire noise is over-riding my oirginal decision. BTW, switching to non run flat would it do anything to the sensors ? Do you need to make any adjustments to the computer ?

[MINNOW]

Originally Posted by difush

BTW, switching to non run flat would it do anything to the sensors ? Do you need to make any adjustments to the computer ?

If it's like the MINI system you will not be required to make any adjustments.
The system works via the ABS/DSC systems by measuring differences in wheel speeds due to overall diameter.

[difush]

thanks...another hurdle out and moving one step closer to throwing out the RFT...just have to get my wife convinced...